Amount Walker earned renting out his campaign’s list of supporters in August 2016: $70,000

Ben Carson at his presidential candidacy announcement event in May 2015.

Paul Sancya/AP

Amount Republican Ben Carson’s failed presidential campaign transferred last month to My Faith Votes — a “nonpartisan movement of the church in America that will motivate believers to act on their faith by casting an informed vote based on a biblical worldview”: $500,000

Amount that the political action committee of Twitter, where much of the nation’s online political conversations take place, contributed to politicians in August: $0